Signaling system



Feb; 8,1927.v 1,16539 G. A. LOCKE SIGNALING SYSTEM Filed Feb. 5, 1924 2 sheets-sheet 1 1,616589 l Feb. 8,1927. GIA'LQCKE SIGNALING SYSTEMl Filedeb.- s, 1924 2 sheets-sheet 2 /m/enof; George/Madre Patented Feb. 8, i927.

GEORGE n. LooKE, oE-GLEN covE,

NEW YORK, y rANY, iNcoRPonArEn, on NEWYORK,

' trassev AssieNoR 'ro WESTERN ELECTRIC'cola-Y N. Y., A conr'oRA'roNoE NEW YORK siGNAltrNa SYSTEM.

Application fue@ February. v5, 19241 semi N'o.,6eo,r/o4'.

rThis invention relates to signalingsystems Y and particularly tothe apparatusand cirsurrounding .sheathota knewly discovered alloy of iron and nickel having very high permeability at low .magnetizing forces. `The signaling frequencies obtainable with such a Ycable are far above the speed .of operation oi the Vheatstonetype of transmitter as commonly used for submarine cable transmission which is limited in its SpeedA ot' satist'actor r o eration due to theinertia of its reciprocating parts and the unavoid-V able vibration oi' its 'movingv parts. To

avoidrthese limitations it has been' proposed to employ a pneumatic transmitter of the type disclosed in a copending application of Allison A. Clokey, Serial No. 680,815, tiled December l5, 1923. Such a transmitter is capable of muchhigher operating speeds than have been possible heretofore, its speed ot operation being limited by thevvariable lengthof signals which sometimes occur due to change in air pressure as aresult of pref vious signals sent. f Y It is the object of the present invention .to correct'the signals of varying length and transmit them .to the lineas corresponding signals of uniform length, To accomplish this object, the invention contemplates storing the impulses received from. the transmitting mechanism and subsequently transmitting to the line corresponding impulses of uniform lengt-h. The invention is described in detail in the followingY specification and reference is made to the accompanying drawing in which Figs. land 2, taken together, withV 'F ig. 2 at the right, disclose a transmitting system in accordance withgthe invention, and Fig. '3

showsthe brush arrangement employed on one of the transmitting `faces of therotary distributor.

i Referring to the drawing. the transmitter T which is :described in detail in the above lmentioned application` consists essentially ot' a pair of diaphragme 50 and 5l enclosing :ble air chambers which communicate; as wenn, with a reservoir 52 maintained at Vtaining 'segments 2, 6, 10, etc.,

a constant pressure. These air chambers also communicate with openings ina platen (not shown) lover which the perforatedgmes sage .tape's passed, the openings being .ar-

ranged so as to be lin with the .dot .and dash perforations in the tape. The diaphragm() is connected'throughlV a Vresistance 54 to `the negative terminal of agrounded batterv 55. In a similarfmanner .alignment respectively` diaphragm'l is connectedthroughfza resistance 56'4 .to the positive terminal of Vthe grounded battery 57. A eontactmember 58 is adapted to engage diaphragm 50 when the latter is tlexedioutward and a .similar con-v i tact 59 isarranged to engage'diaphragm 5l. These contact members are connectedtoathe common ring 60 of the receiving section A ot a rotary distributor, the commutator of which is shown developed. By means of a brush 6l` the common ring is connected in order with segments l to 40. The distributor and the tape feeding mechanism areposi-` tively driven by the same motor and the number of segments is made to correspond with the number of teeth in the tape feeding mechanism so that brush 6l passes to another segment each time the tape is advanced one 40 are dividedinto` the segments of which are eonstep. The segments l to .tour groups, nected in common `and to the windingsof a pair of polarized relays. v Thus, segments l, 5, V9, etc.,

left-hand groupV of, relays. Segments 2, 6, l0, etc., are connected in multiple and to the windingsa and of the secondlgroup of relays. Segments 3` 7, ll, etc., are in like mannervconnected to the windings 66 Aare connected in multiple and to the windings 62 vand63 `of the first or and 67 Vof the third group oflrelayswhile segments 4, 8, 12,A etc., are connected vto the windings 68 and69 of the fourth or rightha'nd group of relays. Y

The restoring section B ofthe distributor comprises av commonring i connected to a .grounded 'source of energy 7l and a groupV of 40 restoring segments of equal length which are adapted to be connec'ted to ring 70 by mea-ns of brush 72. These segments are divided into `four groups in the sante manner-as are 'the receiving segments, the group containing segments l, 5.

70 permanently. y

9.V etc.` being connected to lwindings 74 vand y 76 ot the iirst group of relays, the group con,hv

being con'- i n nectedftoV the ywiiidingsWand 78 of the Y second group'of relays,vthe group containing "segments 3, 7, 11,

etc., being connectedV to i the windings Z 9 andV 80k of the third group of relays and the groupcontaining segments 4,8, 12, etc., being connected to the windings I. 81 and 82 of the' fourth or last group of rela s.

iciy

' Tie sending section of the ,distributor consists. of a common ring `35 and a set ot 40 segments of equal 'length which are connected to the ring in order by means of of group 1 segments 'i nectedto the armature nected to the armature 89 [of group 3, and

ing sections, segments i connected to the armature of the lower Vthe current impulses 4relay of group 4.

In orderto. control the time during which are impressed upon the l line, there is provided on thev distributor' l to ground,

' a curbing section. D

Y consisting of a common ring 91'permanently connected to the com- `mon ring 85 of the sending'section, a common ring 92 which is permanently connected a commonring 93 which is con- I' nectedV to the line or cable 94, and a set of These latter segments vare V40 segments .correspondingto the segments in.l the ,other sections of -the distributor.

- groups eachl of the alternate segments being connected together electrically tov formay Y Y. group of oddsegments and l ring 91by affgroup of even segments; These' segments are connected to means of brush 96 andto ring 93 bymeans ofbrush'f97.' As `ig. 3, brushes 95V and 96 Aare vmounted is shown more'clearly in fixed relation with respect toeach other and 1n such a manner-.that when one brush is van even segment, the

:other brush is just entering upon an odd vsignal impulses are impressed upon the line.V A separate source of energy for theV line ,"eurrent is provided for each Yca ergyl comprises'batteries 100 Vandr101 con.y nected in series.

segment.' Brush 97,'on the other hand, is

is possible to reguma'deadjustable so that it I during which the late theiV time interval setV ofrelays. group V1 the source of en# VFor the relays or K The positivepole ofbatte-ry is connected through resistance 102 Y to contact of the upper relay of the group and to contact 106 of the lower relay of the group. Similarly, the negative pole 'i of battery 101 is connected to contact mem- V j bersf103 andl 104.Y The common Ypoint of batteries 100 and 101 is connected through winding 107'to1 karmature 108 of thev upper- 4, 8, 12, etc., beingV VV134 and 135.

divided into two means of brush95, to ring' 92 by vp 72 is just passing upon segment 2 Vand the` resistance to contact members 112 and' 113. lThe common pointof batteries 110 and 114 isconnected through winding V113 tothe armature 1l9of the upper relay and through winding to the armature 88 of dv the lower relay. In the third group of battery 121 is resistance 122 to contacts relays the positive Vterminal of connected through 127 and 128. The negative terminal ofloat-v tery is connected lthrougdi resistance V126 to contact members 123 mon point ofbatteries 121l 'i and 125V is connected through winding 129-to the armaiture 130` ofthe upper relay. and through -V .Y

to ythe armature39 of. the lower relay. In thefourth group of relays, the positive terminal of battery 132Y is connected 'through' resistance* 133 to contact winding 131 members 138 and 139 and the negative tei-,

minal of thev battery 13G is connected through resistance 13710 contact members teries 132 and-136 is connected through winding 140 to armature 141 of the uppel` relay of this group and through winding 142 to armature 90 ofthe lower relay of this group. F or the purpose of polarizing the relays, the grounded source of energyV 143 is connected seriallythrough thewindings V144 to 151, inclusive and thence to ground.

In the operation of the system, the brushes -61, 72 and. 3G are so 'positioned with respect to each other that .when brush 61 is just assingupon segment 1, the restoring brush sending brush 86`is just passim);v ment 3. Thus,` while thel receiving is passing over segment 1', the restoring brush is passing over segment 2 and removes the previous signal returning the' relays to lzero position in a manner to be explained hereinafter. same time the sending'brush is passing over upon segsegment 3 and is transmitting the signal that has been set up on relaygroup 3. The

Voperation thus takes place 1n four distinct steps. 'signal from the transmitter, group2 isregroup 3 is In the first step, group 1 receives the stored to its zero position and transmitting the signal previously received. During the second step group 2 receives, Vgroup 3 restores and group 4 During the, third step, .group 3 receives, group 4 restores and Duringthe fourth step, groupv 4 receives,

group 1 restores and group 2 transmits. In

this method of transmission a signal is received 1n one step and during the 'nextstep set up on this group,

At theVv transmits. Y

For the second v the positive pole of battery,

throughr resistance 111 to .I

and 124. i 'The com- The common point of batbrush lgroup 1 transmits. f V

v gcorresponding to the transmitter,

the `impulses received from and additional ymeans forv Y E restoring said relays to their vZero position...

` receiving,

and a plurality offpairs. of polarized relays A having windings -members associated with V5.1111 a signaling system an automatic.

transmitter under the control of a perforatedl message tape, a rotary distributor comprising sending and restoring sections,

iindei'tlie control ofcurrent impulsestransmitted,over the receiving section ojf said distributor and having contact suitable sources of energy to subsequently regenerate current ...negative and zero a rotarydistributor 1 jofpolarized relays pulses,-

impulses corresponding to said transmitted impulses, said sending sections of the distributor beingradapte to distribute the regenerated'impulses to tlie'line in their proper sequence. Y .7. n

f 6; In y a signaling? system an automatic transmitter, a plurality of groups of polarized relays and a rotary 'distributor com- `Vprising means for sequentially voperating said relay vg-roupsfin kaccordance with the trolled by sa d 7 erated impulsesto the line in the same se;

f quence as the impulseswvere received from the transmitter, said distributor having arreceiving section adapted to receive impulses from f the traiisniitter and distribute them in order to the variouspairrofrelays, a sendingsection' adapted to transmit to the line current impulses generated by the relays land corresponding to the impulses receivedfrom the Y transmitter, and, a restoring` Vsection forr restoring'the relaysrto their normal positions.-

if 8In a" signaling system an Vautomatic transmitter, a'rotary distributor comprising receiving, sending and restoring sections,

each of said sections; including a common ring and. a plurality ofsegments divided into ariplurality vof segmental groups, the segmentsiof eachgroup being connected in mul- Y tiple apairof polarized relays corresponding to eachof saidV segmental groups,`eachV of f i said Irelays including an operating,Winding associated YWith its corresponding group of 4se;r1nientsin the receiving section, a restoring AWinding associated With itsV corresponding i f'group'of segments the restoring section, i and ,Contact members associated with its corresponding group of. segments in the 1 Vsending section.v

e. 9. In a signaling system van automatic and means VVto,.transmit,to the line,

cooperating to form the current sage tape, relays, means for operating said groups of re-v lays sequentially in yaccordance with the im? pulses transmitted, means for generating and transmitting toY the lineVv currentA impulses of uniform length corresponding to:

the ii'npulses received from the-transmitter for varying .the Vtime intervals during which such generated impulses are impressed upon f the line.

it). A telegraph signaling prising an automatic transmitter, a distributor for receivingl current impulses'froin said transmitter, and aplurality of groups of relayscooperating with the distributor current impulses of uniform length corresponding to the impulses received lays of a group being controlled by current impulses received by the distributor, and cooperating to forin'tlie current impulses of uniform lengthdistributed to the line.

1l. A telegraph signaling system, comprising an automatic transmitter, a distributor for receiving current impulses from said transmitter' and a plurality of rgroups* of relays lcooperating vwith thedistributor to transmit, to the line, current impulses of uniform length corresponding to theV imsyst-em coniby ythe distributor, the repulses received byr the distributor, each of said groups comprising tivo relays and the relays of eaclrgroup having operating Windings connected so as to be energized simultaiieouslyby current impulses received by the distributor, and cooperating to form the tributor'for receiving current impulses fromk saidY tiansmitter,` and ra plurality vof groups of relays cooperating With the distributor to transmit, to the line, current-'impulses of uniform length :corresponding to the Vimpulsesreceived by the distributor, tlie relays ofva group being controlled by cur-rentV distributor and impulses of uniform length distributed to the line,'each of Vsaid relays having` a polarizing Winding all of which are connected in series toa source of current. i

impulses received bythe 13. A telegrapliasignalingsystem, comV prising .an automatic transmitter, a Vdistributor for `receiving current impulses from said transmitter, and a plurality vof groups of relays cooperating With the distributor' toV transmit, to the line, current impulses of uniform length corresponding to the impulses received by the distributor, the relays of a ,group current impulses received by thedistributor and cooperating to form the current imllU being controlled by `pulses received by the distributor, the relays of a group being controlled by current impulses received by the distributor and cooperatingto form the current impulses of uniform length distributed to the line,

, -the relays of each group being' so connected to the'V distributor that they may be con-Y trolled by received current impulses of either positive or negative polarity.

15. A telegraph signaling system coinprising' an automatic transmitter, a distributor for receiving current impulses from said transmitter, and af plurality of groups of relays cooperating' with the distributor to transmit, tothe line, current impulses Vof uniform length corresponding tov the impulses received by the distributor, the relays of a group beingcontrolled by currentximpulses received by the distributor and cooperating to form the current impulses of uniform length distributed to the line, the contacts of the relays Within a group being so interconnected that during the sending to the line of an impulse generated by said relays the impulse sent is transmitted through contacts of each of the relays forming the group..

16. A telegraph signaling system comprising anautomatic transmitter, avrotaryv distributor, an outgoing line, a source of signaling current for said line, a plurality of polarized relays cooperating with said distributor to receive and store current impulses received from said transmitter through said distributor, and subsequently cooperating With said distributor to impress cur-v rent impulses of uniform length, and corresponding to the received impulses, upon said line from said source, through a circuit including said source, a contact of one of said relays, said distributor and said line, said relays operating in distinct steps determined by said distributor to permit of cer-` tain delay between the receipt by said relays of impulses from said transmitter and'A the transmission of impulses to said line.

y through said receiving segments,

eratiiig With said transmitting segments to` steps determined by 17. A telegraph signaling system com-l going line, a source of signaling current for said line, a rotary distributor having receiving segments and transmitting segments, a plurality of groups of polarized relays cooperating With said distributor. to receive and store current impulses received Vfrom said transmitter through said receiving segments, and cooperating vvith said transmitting segments to impress, upon said line, current impulses from said source of uniform length and corresponding to the re- 'en Yprising .an automaticV transmitter, an out-- ceived impulses, said transmitting segments at the time of transmission of the signal to said line being included between said line and said source.

y18. A telegraph signaling systeml comprising an automatic transmitter, an out- .going line, a source of signaling current for said line, a rotary distributor having receiving segments, transmitting segments, and curbing segments, a plurality of groups of polarized relays cooperating with said distributor to receiveV and store current imtransmitter and cooppulses received from said impress upon said line, current impulses from said source of uniform length and corresponding to the received impulses, said transmitting segments at the time of transmission of the signal to said line being included. between said line and source.

19. A telegraph signaling system coniprising an automatic transmitter, ,a distributor for receiving current impulses from the transmitter, and four groups ofV polarized relays to storel the current impulsesreceived by the distributor and to genera-te vcurrent impulses of uniform length corresponding to the received impulses and cooperating With the distributor to distribute the generated impulses to the, line, said relay groups operating in four distinct the distributor, Whereby during each step a g'roupris receiving, another group is restoring, a third group is transmitting and a fourth group is storing and during' successive steps different groups 4are receiving, restoring and tansiiritting so that any one group is receiving, storing', transmitting andrbeing restored during the series of four steps. f

In Witness whereof, I hereunto subscribe my name this 4th day of February A. D., 1924.

GEORGE A. Looms. 

